August 21st (1140) was a Wednesday. It's the 233rd day of the year (234th in leap years) in the Gregorian calendar. There are 132 days left to the end of the year.
Historical Events for 21st August, 1140
» Song Dynasty general Yue Fei defeats an army led by Jin Dynasty (1115–1234) known as Jin Dynasty general Wanyan Wuzhu at the Battle of Yancheng during the Jurchen campaigns against the Song Dynasty known as Jin–Song wars.